TWI448601B - Drum washing machine - Google Patents

Description

Drum washing machine Field of invention

The present invention relates to a drum type washing machine which improves washing performance and prevents black spots on clothes.

Background of the invention

In the conventional washing machine, a control method for performing a washing stroke in a high concentration state of the washing liquid is proposed in Japanese Laid-Open Patent Publication No. 2000-342887 (hereinafter referred to as "Patent Document 1").

Hereinafter, the operation of the conventional washing machine described in Patent Document 1 will be described with reference to the drawings.

Figure 8 is a flow chart showing the operation of a conventional washing machine. Fig. 9 is a front view showing the water amount setting key of the aforementioned washing machine. Fig. 10A and Fig. 10B are diagrams showing an example of a display lamp showing the washing amount of the aforementioned washing machine.

As shown in Fig. 8, first, when the user turns on the power, the washing machine starts.

Next, it is determined whether or not the user has selected the high-concentration program using the operation program selection button (step S201).

Then, when the user selects the high-concentration program (YES in step S201), the indicator lamp 35a shown in Fig. 9 indicates the amount of water used, and the lamps 40a, 40b shown in Fig. 10A or 10B are shown. Indicates the amount of washing applied (step S202). The user puts the lotion into the inner tank or the like according to the indicated washing dose. Further, the amount of water can be further reduced by using the water amount setting key 35 shown in Fig. 9. At this time, in Patent Document 1, the amount of washing is indicated as being more than necessary for the standard operating procedure, and the amount of water supplied is smaller than that of the standard operating procedure. For example, when the amount of water supplied to the water is 30 liters, the amount of the washing is, for example, 60 g. The amount of the laundry in the standard washing procedure was set to a set value at 3 kg, that is, when the water concentration was 39 liters and the washing amount was 27 g, the concentration of the lotion became about 3 times in the case of a high concentration.

Next, the user puts the lotion into the inner tank or the like according to the indicated washing amount, starts the washing operation, and supplies the water to the set water supply amount (step S203). Then, when the water supply is completed, it is moved to the washing course (step S211).

Next, it is judged whether or not the predetermined washing time has elapsed (step S212), and when the washing time has elapsed and the washing course is completed (YES in step S212), it is moved to the rinsing step of the next stroke. On the other hand, when the cleaning time has not elapsed (NO in step S212), the cleaning stroke is repeated (step S211).

Moreover, when the user does not select the high-concentration program (NO in step S201), it is determined whether or not the high-concentration program is selected first (step S204).

Then, when the high concentration program is first immersed (YES in step S204), first, the amount of water is expressed in the same manner as the high concentration program, and the washing amount is indicated (step S205).

Next, the user puts the lotion into the inner tub or the like according to the indicated washing dose, starts the washing operation, and supplies water until the set water supply amount (step S206). Then, when the water supply is completed, the stirring A of the laundry is performed (step S207).

Next, when the stirring A is finished, the movement is shifted to the following first soaking operation. At this time, the first soaking operation stops the rotation of the water tank (step S208) and the stirring B (step S209), and determines whether or not the first immersion is completed (step S210). When the first soaking operation is not completed (NO in step S210), the rotation of the water tank (step S208) and the stirring B are stopped (step S209).

Next, when the first immersion operation is completed (YES in step S210), the operation after the cleaning process (step S211) is performed in the same manner as when the high-concentration program is selected.

That is, the conventional washing machine selects a high-concentration program by the above-described control method, so that the amount of the lotion to be charged is larger than the standard operation program, and the amount of water supplied is small, and the washing is performed. Thereby, the washing performance is improved and the black spots of the clothes are prevented, and the laundry can be washed by means of high quality laundry.

However, in the conventional washing machine, in order to prevent black spots on the clothes, when washing with a high concentration program, in order to wash a predetermined amount of clothes with a smaller amount of water than the prescribed amount of water, the clothes are forced in the washing tub (inner tank). Stir. At this time, since the water tank (outer groove) of the inner bag inner groove is swayably supported in the casing, when the clothes are forcibly stirred in the inner tank, the entire outer groove is greatly shaken, and the vibration is increased and noise is generated. Furthermore, in the worst case, there is a problem that the outer groove collides with the casing. Further, in Patent Document 1, a vertical automatic washing machine is described as an example in the embodiment, but the same problem occurs even in a drum type washing machine.

Summary of invention

The drum type washing machine of the present invention includes a water tank supported in the washing machine body, a rotary drum installed in the water tank, a motor that rotationally drives the rotary drum, a water supply valve that supplies water into the water tank, and an input setting unit and a display unit. The operation display unit, a drain valve that communicates with the drain port, a cloth amount detecting unit that detects the amount of clothes, and a control unit that sequentially controls one of the washing stroke, the rinsing stroke, and the dehydration stroke. When the high-level laundry program is selected by the input setting unit, after the cloth amount detecting unit detects the cloth amount, the control unit indicates the water level corresponding to the cloth amount and the predetermined washing amount exceeding the standard washing amount corresponding to the water level. unit.

Thereby, the vibration performance is not impaired by the expansion of the vibration of the outer tank or the occurrence of noise, and the washing performance can be improved with a high detergent concentration and the black spots of the clothes can be prevented.

Simple illustration

Fig. 1 is a longitudinal sectional view showing a drum type washing machine in accordance with a first embodiment of the present invention.

Fig. 2 is a block diagram showing the control operation of the above-described drum type washing machine.

Fig. 3 is a view showing an example of an operation display portion of the drum type washing machine.

Fig. 4 is a flow chart showing the control from the washing stroke to the dehydrating stroke in the high-grade washing program of the aforementioned drum type washing machine.

Fig. 5 is a longitudinal sectional view showing a drum type washing machine in accordance with a second embodiment of the present invention.

Fig. 6 is a view showing an example of an operation display portion of the drum type washing machine.

Fig. 7 is a flow chart showing the control from the washing stroke to the dehydrating stroke in the high-grade washing program of the aforementioned drum type washing machine.

Figure 8 is a flow chart showing the operation of a conventional washing machine.

Fig. 9 is a front view showing a water amount setting key of a conventional washing machine.

Fig. 10A is a view showing an example of a display lamp showing a washing dose of a conventional washing machine.

Fig. 10B is a view showing an example of a light indicating a washing dose of a conventional washing machine.

Detailed description of the preferred embodiment

Hereinafter, embodiments of the present invention will be described with reference to the drawings. Further, the inventors of the present invention are not limited by the embodiment.

(Embodiment 1)

Fig. 1 is a longitudinal sectional view showing a drum type washing machine in accordance with a first embodiment of the present invention.

As shown in Fig. 1, the drum type washing machine of the present embodiment includes at least a water tank 52 that is swingably disposed inside the washing machine body 51, and a bottomed cylindrical rotating drum 53 that is rotatably disposed in the water tank 52. The motor 54 is attached to the outer side of the back surface of the water tank 52, and the rotary drum 53 is rotationally driven by the motor 54. At this time, in the lower inner side of the side wall of the water tank 52, a drain groove 76 having a concave opening 71, for example, is provided along the direction of the rotating shaft 63 of the rotary drum 53.

Further, the drum type washing machine according to the present embodiment controls the motor 54, the water supply system 55, the drainage system 56, the drying system 57, and the like shown in Fig. 1 by the control unit in accordance with the mode setting or the control program, and has at least a cleaning stroke. The function of rinsing stroke, dehydration stroke and drying stroke. Further, the drying system 57 may be omitted to constitute a drum type washing machine.

At this time, as shown in Fig. 1, the water supply system 55 is opened and closed by the water supply valve 85 (described later in Fig. 2), and is viewed from the front in the vertical direction from the center of the water tank 52, and is disposed on the side of the side such as the left side. The water supply path 75 of the position supplies water or the like to the inside of the water tank 52 in a timely manner as indicated by a solid arrow a. At this time, the washing agent stored in the lotion accommodating portion 58 is put into the water tank 52 together with the tap water at the same time as the water supply. Further, the term "front view" means that the inside of the water tank 52 is seen from the opening and closing door 64 of the first drawing.

In addition, when the draining valve 59 is opened and closed by the drain valve 59, when the washing stroke is completed or the rinsing stroke is completed, the draining system 56 uses the draining path indicated by the broken line arrow b in Fig. 1 to wash the washing water or the rinsing water. Drain the outside of the drum washing machine. Further, the drain path is formed by a drain pipe 60 connected to the drain port 71 formed in the lower portion of the inner bottom of the water tank 52, a drain filter 61 provided in the filter case 67, a connecting pipe 72, and a drain valve 59. The drain filter 61 collects the strands and is arranged to be detachable from the outside. Further, the washing water, the rinsing water, and the like can be easily drained through the drain port 71 of the drain 76 provided in the lower portion of the side wall of the water tank 52.

Further, a gas trap 68 is provided on the upstream side of the drain valve 59, and is connected to a water level detecting portion 94 (described later in FIG. 2) constituted by a pressure sensor or the like through an air tube 69 connected to the air trap 68. Thereby, for example, the water level of the plurality of stages can be detected by the change in the water pressure generated by the washing water supplied to the inside of the water tank 52.

Further, the rotary drum 53 is directly connected to the motor 54 fixed to the outer bottom of the water tank 52 by a rotary shaft 63 which is provided to be inclined upward from the substantially horizontal direction or the horizontal direction. Then, the rotating drum 53 is rotated by the driving of the motor 54, and the clothes thrown into the rotating drum 53 from the front opening and closing door 64 are stirred and washed. Further, when the opening and closing door 64 is closed, the opening and closing door 64 can be sealed by the sealing member 66 attached to the opening edge 65 of the water tank 52, and can be opened when the clothes are put in.

Further, the drying system 57 circulates the air in the water tank 52 and the rotary drum 53 by the blower 62 along the circulation path indicated by the broken line arrow c in Fig. 1 . Here, a heat pump device 86 (described later in FIG. 2) is provided in the circulation path of the drying system 57. The heat pump device 86 is a filter (not shown) for collecting cotton dust and dust, and dehumidifying the introduced air after dust removal. The dehumidifying unit (not shown) and the heating unit that heats the dehumidified air and heats the high-temperature air.

In addition to the water supply system 55, the drainage system 56, and the drying system 57, the drum type washing machine of the present embodiment includes a permeation circulation water passage 78 for the cleaning preparation stroke, the washing stroke, the rinsing stroke, and the like. The function of circulation such as tap water in 52. Thereby, it is possible to dissolve the lotion in the early stage (short time), prevent the unevenness of the lotion in the tap water, and improve the function of the washing stroke or the rinsing stroke.

That is, for example, in the washing stroke, the rotation speed can be made variable, and the water in the water tank 52 can be circulated through the circulation water passage 78 by, for example, driving the circulation pump 79 composed of a motor. Specifically, the circulation system water passage 78 passes through the bottom drain pipe 60 connected to the drain port 71 of the drain groove 76 of the water tank 52, the drain filter 61, the inflow side path 80 toward the circulation pump 79, the circulation pump 79, and the circulation pump 79. The side path 81 is discharged, and the water in the water tank 52 is circulated. Further, as indicated by the arrow in FIG. 1, the water in the water tank 52 that has passed through is injected into the rotary drum 53 as a circulating water from a plurality of injection holes 82 formed in the front portion (front side) of the water tank 52.

In addition, the mode selection of the operation program such as the washing operation or the selection of various functions such as the water level is performed by the input setting unit 83 (described later in FIG. 2 and FIG. 3) and the display unit provided on the front surface of the washing machine main body 51. The operation display unit 74 constituted by 54 (described later in FIG. 2 and FIG. 3) is input and performed. At this time, the control device 70 displays the input information of the operation panel 73 on the display unit 84 on the operation panel 73 to let the user know. When the operation of the washing operation is started by the input setting unit 83 of the operation panel 73, the data from the water level detecting unit 94 for detecting the water level in the water tank 52 is input to the control device 70. Thereby, the control device 70 controls the operations of the motor 54, the drain valve 59, the water supply valve 85, and the like in accordance with the input data, and sequentially controls the series of the cleaning stroke, the rinsing stroke, the dehydration stroke, and the drying stroke to operate.

Hereinafter, the control operation of the drum type washing machine according to the present embodiment will be described using FIG.

Fig. 2 is a block diagram showing the control operation of the drum type washing machine of the embodiment.

As shown in FIG. 2, the control unit 88 of the control device 70 is configured by, for example, a microcomputer, and is connected to the commercial power source 89 by turning on the power switch 90 to supply electric power and start operation. The outputs from the cloth amount detecting unit 91, the temperature detecting unit A92, the temperature detecting unit B93, and the water level detecting unit 94 are input to the control unit 88. Further, the operation display unit 74 is configured by the input setting unit 83 and the display unit 84, and displays the setting content in the operation display unit based on the content set by the input setting unit 83 of the operation display unit 74 by the user's input. A portion 84 of 74.

Further, the control unit 88 of the control device 70 controls the motor 54, the air blowing fan motor 77, the heat pump device 86, and the drain valve by, for example, the load driving unit 87 of the control device 70 including a two-way thyristor or a repeater. 59. Operation of the water supply valve 85, the circulation pump 79, and the like. Thereby, each stroke such as a washing stroke, a rinsing stroke, a dehydration stroke, and a drying stroke is controlled.

According to the above configuration, the drum type washing machine of the present embodiment is obtained.

In the following, the operation of one of the cleaning stroke, the rinsing stroke, and the dehydration stroke in the series of the washing process, the rinsing stroke, and the dehydration stroke when the high-grade laundry program (prevention of the black spot program) is used as the main object of the present embodiment, and the first and second figures are used. 3 and 4 are explained.

Fig. 3 is a view showing an example of an operation display unit of the drum type washing machine in the first embodiment.

First, the user opens the opening and closing door 64 shown in Fig. 1 and puts the clothes into the rotary drum 53. Then, the user inputs the power source by pressing the power input button 83a of the input setting unit 83 of the operation display unit 74 shown in FIG. Next, the user selects the high-grade laundry program 84a by the display of the display unit 84 by the program button 83c of the input setting unit 83. Next, the user presses the start button 83b of the input setting unit 83 to start the operation of the drum type washing machine. Further, as shown in Fig. 3, in addition to the above, the input setting unit 83 of the operation display unit 74 includes a washing and drying washing button 38d, a stroke button 83e for setting a stroke from the washing stroke to the drying stroke, and And set the water level button 83f and so on. At this time, the water level of the tap water supplied by the user can be freely set by the water level button 83f in response to the amount of the cloth. On the other hand, when the user does not set the water level, the water level from the low water level to the high water level is automatically set, for example, according to the amount of cloth detected by the cloth amount detecting unit 91 shown in Fig. 2 .

Then, in the case of the high-grade laundry program (prevention of the black spot program) for preventing dark spots of clothes in the present embodiment, the water level of the low water level or the middle water level is automatically set, and the water level is indicated by the water level indicating portion 84b.

Therefore, the following is a description of the control for selecting a high-grade laundry program for preventing black spots on clothes, which will be described using FIG.

Fig. 4 is a flow chart showing the control of the high-grade washing program of the aforementioned drum type washing machine from the washing stroke to the dehydrating stroke.

As shown in Fig. 4, first, it is determined whether or not the high-grade laundry program 84a is selected by the program button 83c of the input setting unit 83 of the operation display unit 74 (step S1). When the high-grade laundry program 84a is not selected (No in step S1), for example, washing is started under each washing condition in response to a selection program selected by the program button 83c such as "rapid".

Further, when the high-grade laundry program 84a is selected (Yes in step S1), the washing in the high-grade laundry program is started.

Next, the amount of cloth to be fed is detected by the cloth amount detecting unit 91 shown in Fig. 2 (step S2), and the water level detected by the control unit 88 is used (the low water level in the high-grade laundry program or The middle water level is shown in the water level indicating portion 84b (step S3). At the same time, a conventional standard washing amount exceeding the amount of water with respect to the detected water level, for example, about 2 times (including 2 times) of the predetermined washing amount is expressed as the amount of the digit indicating portion 84c as, for example, a lotion cup. For example, in the case where the cloth volume is 4.5 kg and the set water level is automatically set to the middle water level, the standard washing dose is usually 0.8 cups for the lotion cup, and in the high-grade laundry program, 1.6 times the cup is expressed in the digital display portion. 84c.

When the user inputs the washing amount (about twice the standard washing amount) indicated by the digital display portion 84c (step S4), the control unit 88 controls the water supply valve 85 through the load driving unit 87 to start the water supply into the water tank 52 (step) S5). Then, until the predetermined amount of water supply of the automatically set water level is completed, the water supply agitation is started (step S6). At this time, in the water supply agitation, the control unit 88 drives the circulation pump 79 through the load driving unit 87, and ejects the washing water in the water tank 52 as circulating water from the injection hole 82 in the upper portion of the water tank 52 into the rotary drum 53. Thereby, the dissolution of the lotion which is put into the washing water is promoted. At the same time as the circulating water injection, the control unit 88 drives the motor 54 through the load driving unit 87 to rotate the rotary drum 53. Thereby, the clothes thrown into the rotating drum 53 are stirred, and the pre-washing process is started. At this time, in the washing process of the conventional washing machine, when washing with a high concentration program, a standard washing amount (1 time) is introduced, and the relative concentration of the lotion is increased by less water to perform washing. Therefore, since the clothes are hardly stirred in a small amount of water, the rotating drum is eccentric and easily collides with the casing. However, in the present embodiment, since the laundry is washed by increasing the concentration (twice) of the lotion by a normal water level (water amount), it is difficult to cause the eccentricity of the rotary drum to occur without hitting the casing even at a normal number of rotations.

When the pre-washing stroke is completed and the dirt of the clothes is dropped to some extent, the control unit 88 opens the drain valve 59 through the load driving unit 87, and discharges the washing water in the water tank 52 through the drain system 56 (step S7). Further, in the above-described drainage, after draining to the lowest level water level detectable by the water level detecting unit 97 shown in FIG. 2, the control unit 88 closes the drain valve 59 after 10 seconds have elapsed. At this time, a certain amount of dirt peeled off from the clothes is discharged to the outside of the drum type washing machine by drainage.

Next, the control unit 88 controls the water supply valve 85 through the load driving unit 87 to supply water into the water tank 52 until the same water level as in step S5 (step S8).

That is, by the draining of the step S7 after the pre-washing stroke and the water supply of the step S8, the concentration of the lotion in the water tank 52 becomes approximately one time (including one time) of the normal concentration. This is, for example, the water level in the water supply (step S5) is about twice the water level (the lowest level of water level) at the time of drainage (including 2 times). Therefore, about 2 times the concentration of the lotion in the lowest level water level is diluted to about 1 time due to the water level in the water supply. Thereby, the washing is carried out at the usual standard lotion concentration in the following strokes.

Next, the washing and agitation of the main washing course is started (step S9).

Next, after the cleaning and agitation of the official cleaning process, the rinsing of the secondary stroke (1) is performed. In the rinsing (1) stroke, first, the control unit 88 opens the drain valve 59 through the load driving unit 87 to drain the washing water in the water tank 52 (step S10). Thereafter, centrifugal force is applied to the clothes to perform intermediate dehydration for separating moisture from the clothes (step S11). Thereafter, the control unit 88 controls the water supply valve 85 through the load driving unit 87 to supply water to the water level of the washing course. Then, the control unit 88 drives the motor 54 through the load driving unit 87 to rotate the rotary drum 53, and starts the rinsing and stirring of the washing liquid from the clothes (step S12).

Next, after the rinsing (1) stroke, the rinsing (2) stroke which becomes the final rinsing stroke is performed. In the rinsing (2) stroke, similarly to the rinsing (1), the control unit 88 opens the drain valve 59 through the load driving unit 87, and drains the rinsing water in the water tank 52 (step S13). Thereafter, centrifugal force is applied to the clothes to perform intermediate dehydration of separating moisture from the clothes (step S14). Thereafter, the control unit 88 controls the water supply valve 85 through the load driving unit 87 to supply water to the water level of the washing stroke. Then, the control unit 88 drives the motor 54 through the load driving unit 87 to rotate the rotary drum 53, and starts the rinsing and stirring of the washing liquid from the clothes (step S15).

Next, after the rinsing (2) end of the stroke, the dehydration step is performed (step S16). In the dehydration process, first, the drain valve 59 is opened, and the water in the water tank 52 is drained, and then the motor 54 is driven to rotate the rotary drum 53 at a high speed, and the centrifugal force is applied to the clothes to separate the moisture from the clothes. Step S16).

As described above, according to the present embodiment, the high-grade laundry line program (black spot prevention program) for preventing the black spots of the clothes is prevented by setting the pre-washing stroke at a washing dose of about 2 times the standard washing amount to prevent the black spot of the clothes from being black spots. The lotion concentration improves the cleaning performance, prevents the black spots of the clothes, and enables the drum type washing which can be washed by the high quality laundry.

Further, according to the present embodiment, since the pre-washing stroke is performed at a normal water level using a washing amount which is more than twice the standard washing amount, the main washing stroke is performed at a concentration approximately equal to about 1 times the normal washing agent concentration, thereby suppressing the eccentricity of the rotating drum. The expansion caused by the rotation causes the vibration and noise of the sink to occur.

Thereby, the drum type washing which does not reduce the vibration performance can be implement|achieved.

Further, in the present embodiment, an example in which the washing amount of twice the standard washing amount is indicated on the display portion and the user is urged to input is described. However, the present invention is not limited thereto. When the input washing dose does not affect the vibration performance of the rotating drum (for example, collision with the casing, etc.), the water level of the water supply in the pre-washing stroke may exceed the standard washing amount, for example, 1.5 to 3 times. At this time, even if the lotion concentration of the washing water remaining after the drainage in the pre-washing stroke is thin due to the washing water injected in the main washing course, the concentration of the lotion which is the same level (1 time) as the standard washing amount can be put. Wash the dose.

(Embodiment 2)

Hereinafter, the drum type washing machine according to the second embodiment of the present invention will be described with reference to the drawings.

Fig. 5 is a longitudinal sectional view showing a drum type washing machine in accordance with a second embodiment of the present invention.

The drum type washing machine of the present embodiment is different from the first embodiment in that a liquid detergent automatic input device that automatically puts the lotion into the water tank is provided, and the liquid detergent automatic input device is controlled. Other configurations, controls, operations, and the like are the same as those in the first embodiment, and the description thereof will be omitted.

That is, as shown in Fig. 5, the drum type washing machine of the present embodiment is provided with a liquid detergent automatic input device 95 inside the upper portion of the washing machine body 51. The liquid detergent automatic introducing device 95 has at least a liquid detergent tank 95a for storing a liquid detergent, and a pressurizing device 95b such as an air pump. Further, the air pump connected to the sealed liquid detergent tank 95a is configured to increase the air pressure in the liquid detergent tank 95a, and automatically wash the liquid of the liquid detergent tank by the pressurized air pressure. The agent is introduced into the water tank 52 by a predetermined amount.

Hereinafter, when the black spot prevention program (high-grade laundry program) of the present embodiment is selected, the control of the liquid lotion automatic input device 95 is mainly used, and the sixth and seventh drawings will be described.

Fig. 6 is a view showing an example of an operation display unit of the drum type washing machine in accordance with the second embodiment of the present invention. As shown in Fig. 6, the drum type washing machine of the present embodiment is provided with a liquid detergent automatic input button 83g in the input setting unit 83 of the operation display unit 74, so that the user can set the washing of the liquid lotion before the start of washing. dose.

Fig. 7 is a flow chart showing the control of the above-described drum type washing machine from the washing stroke of the high-grade washing program to the dehydration stroke. Further, the steps S1 and S2 in the seventh embodiment and the steps S5 to S16 are the same as those described in the first embodiment of the fourth embodiment, and therefore the description thereof will be omitted.

As shown in Fig. 7, first, it is determined whether or not the high-grade laundry program (black spot prevention program) 84a is selected by the program button 83c of the input setting unit 83 of the operation display unit 74 (step S1). At this time, when the high-grade laundry stroke is selected (Yes in step S1), it is determined whether or not the liquid detergent automatic input button 83g is pressed to select the liquid detergent automatic input (step S101). When the liquid detergent is not automatically charged (No in step S101), the washing is carried out in accordance with the flowchart of Fig. 4 described in the first embodiment.

On the other hand, when the liquid detergent is automatically charged (Yes in step S101), the liquid detergent is automatically put in by the liquid detergent and the washing is started.

Next, the amount of cloth to be fed is detected by the cloth amount detecting unit 91 shown in Fig. 2 (step S2), and the water level corresponding to the amount of the cloth to be detected by the control unit 88 (low water level or medium water level in the high-grade laundry program) ) is shown in the water level indicating unit 84b (step S102). At the same time, the usual standard liquid lotion which will be in excess of the amount of water relative to the detected water level exceeds the washing amount, for example, about 2 times (including 2 times) of the predetermined washing amount is expressed in the digital indicating portion 84c as the amount of, for example, the lotion cup. (cup). For example, when the cloth is 4.5kg and the set water level is automatically set to the middle water level, the washing dose of the lotion concentration is usually 0.8 cups. However, the 1.6 cups of the high-grade laundry program are represented by the digital display unit. 84c.

Then, the air pump of the liquid detergent automatic charging device 95 is driven for a predetermined time, and the liquid detergent indicated by the digital display portion 84c is automatically introduced into the water tank 52 from the liquid detergent automatic input device 95 (step S103).

Hereinafter, the same operation as step S5 to step S16 described in Fig. 4 is carried out, and washing is completed.

As described above, according to the present embodiment, in the same manner as the embodiment 1, the high-grade laundry program for preventing the black spots of the clothes by performing the pre-washing stroke by the washing amount exceeding about twice the standard liquid washing amount is provided. The black spot prevention program), while improving the cleaning performance with a high lotion concentration, prevents dark spots on the clothes, and can realize a drum type washing which can be washed by a high quality laundry.

Further, according to the present embodiment, after the pre-washing stroke is performed at a washing dose exceeding about twice the standard liquid washing amount with respect to the normal water level, the main washing stroke is performed at a concentration approximately equal to about 1 times the normal detergent concentration, so that the rotation is suppressed. The expansion caused by the eccentricity of the drum causes the vibration and noise of the water tank to occur. Thereby, a drum type washing machine which does not degrade the vibration performance can be realized.

Further, according to the present embodiment, the liquid washing amount exceeding the standard liquid washing amount, for example, about 2 times, is automatically input by the selection of the liquid detergent automatic input, and the high-grade laundry program (black spot prevention program) can be implemented. . As a result, the operation of putting the lotion is eliminated, the lotion is prevented from being misplaced, and the user-friendly drum type washing machine can be realized by improving the operability of the user.

Further, in the present embodiment, an example in which the liquid washing amount of the standard liquid washing amount is twice as indicated in the display portion and automatically input is described, but the invention is not limited thereto. When the liquid washing dose of the input does not affect (for example, does not collide with the casing) the vibration performance of the rotating drum, the water level of the water supplied in the pre-washing stroke may be as long as the standard liquid washing amount is exceeded, even if it is, for example, 1.5 times to 3 It can be around. At this time, the liquid detergent concentration remaining in the washing water after the pre-washing stroke is drained, even if it is thinned by the washing water injected in the main washing stroke, the liquid can be put into the same level (1 time) as the standard liquid washing dose. The liquid wash dose of the lotion concentration.

35. . . Water setting button

35a. . . Indicator light

40a. . . Indicator light

40b. . . Indicator light

51. . . Washing machine body

52. . . sink

53. . . Rotating drum

54. . . motor

55. . . water supply system

56. . . Drainage system

57. . . Drying system

58. . . Lotion accommodating department

59. . . Drain valve

60. . . Drain pipe

61. . . Drainage filter

62. . . Blower

63. . . Rotary axis

64. . . Open and close

65. . . Opening edge

66. . . Sealing material

67. . . Filter box

68. . . Gas trap

69. . . oxygen tube

70. . . Control device

71. . . Drainage port

72. . . Connecting pipe

73. . . Operation panel

74. . . Operation indicator

75. . . Water supply path

76. . . gutter

77. . . Fan motor

78. . . Circulating waterway

79. . . Circulating pump

80. . . Inflow path

81. . . Spit test path

82. . . Spray hole

83. . . Input setting section

83a. . . Power input button

83b. . . Start button

83c. . . Digital representation

83d. . . Wash button

83e. . . Travel button

83f. . . Water level button

83g. . . Liquid lotion automatic input button

84. . . Representation department

84a. . . High-grade laundry program

84b. . . Water level indication

84c. . . Digital representation

85. . . Water supply valve

86. . . Heat pump device

87. . . Load drive unit

88. . . Control department

89. . . Commercial power supply

90. . . switch

91. . . Cloth measuring department

92. . . Temperature detection unit A

93. . . Temperature detection unit B

94. . . Water level detection department

95. . . Liquid lotion automatic input device

95a. . . Liquid detergent tank

95b. . . Pressurizing device

S1 ~ S16. . . step

S201～S213. . . step

a. . . arrow

b. . . arrow

c. . . arrow

d. . . arrow

Fig. 1 is a longitudinal sectional view showing a drum type washing machine in accordance with a first embodiment of the present invention.

Fig. 2 is a block diagram showing the control operation of the above-described drum type washing machine.

Fig. 3 is a view showing an example of an operation display portion of the drum type washing machine.

Fig. 4 is a flow chart showing the control from the washing stroke to the dehydrating stroke in the high-grade washing program of the aforementioned drum type washing machine.

Fig. 5 is a longitudinal sectional view showing a drum type washing machine in accordance with a second embodiment of the present invention.

Fig. 6 is a view showing an example of an operation display portion of the drum type washing machine.

Fig. 7 is a flow chart showing the control from the washing stroke to the dehydrating stroke in the high-grade washing program of the aforementioned drum type washing machine.

Figure 8 is a flow chart showing the operation of a conventional washing machine.

Fig. 9 is a front view showing a water amount setting key of a conventional washing machine.

Fig. 10A is a view showing an example of a display lamp showing a washing dose of a conventional washing machine.

Fig. 10B is a view showing an example of a light indicating a washing dose of a conventional washing machine.

51. . . Washing machine body

52. . . sink

53. . . Rotating drum

54. . . motor

55. . . water supply system

56. . . Drainage system

57. . . Drying system

58. . . Lotion accommodating department

59. . . Drain valve

60. . . Drain pipe

61. . . Drainage filter

62. . . Blower

63. . . Rotary axis

64. . . Open and close

65. . . Opening edge

66. . . Sealing material

67. . . Filter box

68. . . Gas trap

69. . . oxygen tube

70. . . Control device

71. . . Drainage port

72. . . Connecting pipe

73. . . Operation panel

74. . . Operation indicator

75. . . Water supply path

76. . . gutter

77. . . Fan motor

78. . . Circulating waterway

79. . . Circulating pump

80. . . Inflow path

81. . . Spit test path

82. . . Spray hole

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b. . . arrow

c. . . arrow

d. . . arrow

Claims (5)

A drum type washing machine comprises: a water tank supported in the washing machine body; a rotating drum installed in the water tank; a motor, rotating and driving the rotating drum; a water supply valve for supplying water into the water tank; and an operation indicating mechanism, which is input setting The mechanism and the representative body of the indicator; the drain valve, which is connected to the drain port; the cloth volume detecting mechanism, which is the one that detects the cloth volume; and the control mechanism, which sequentially controls one of the cleaning, rinsing and dehydration processes, in the user When the high-grade laundry program is selected by the input setting mechanism, after the cloth amount detecting mechanism detects the cloth amount, the control mechanism expresses the water level corresponding to the cloth amount and the predetermined washing amount exceeding the standard washing amount corresponding to the water level. In the foregoing representation mechanism. The drum type washing machine of claim 1, wherein the predetermined washing dose is twice the aforementioned standard washing dose. The drum type washing machine of claim 1, wherein the control means, after the water level and the washing amount, in the high-grade washing program, operates the water supply valve and supplies water, and the motor is rotationally driven. After the pre-washing stroke, the drain valve is operated and drained, and the water supply valve is operated again to supply water, and the motor is rotationally driven to perform a main washing stroke. The drum type washing machine of claim 1 or 2, further comprising a liquid detergent automatic input device, and when the user selects the high-grade laundry program by the input setting mechanism, detecting by the cloth amount detecting mechanism After the amount of the cloth, the control means indicates the water level corresponding to the cloth amount in the foregoing indicating means, and the predetermined washing amount exceeding the standard liquid washing amount corresponding to the water level is input by the liquid detergent automatic input device. Inside the sink. A drum type washing machine according to claim 4, wherein the predetermined washing amount is twice the amount of the aforementioned standard liquid washing amount.